CN112227209A - Special formwork for concrete column in tidal range area - Google Patents
Special formwork for concrete column in tidal range area Download PDFInfo
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- CN112227209A CN112227209A CN202011022337.4A CN202011022337A CN112227209A CN 112227209 A CN112227209 A CN 112227209A CN 202011022337 A CN202011022337 A CN 202011022337A CN 112227209 A CN112227209 A CN 112227209A
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- hollow
- hollow cylinder
- suction
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
A special template for a concrete column in a tidal range area belongs to the technical field of templates for building construction. The suction nozzle comprises an outer shell plate, a hollow inner lining plate, suction nozzles and a negative pressure machine, wherein the outer shell plate is connected into a whole by two symmetrical split structures to form a structure with connecting flanges at two ends of a cylinder, the hollow inner lining plate is arranged in the outer shell plate and also connected into the hollow cylinder by two symmetrical split structures, a plurality of water suction holes are uniformly formed in the inner side wall of the hollow cylinder, a plurality of suction nozzles communicated with the hollow cylinder are connected to the outer side wall of the hollow cylinder, a water suction pipe connected with the suction nozzles is arranged in the hollow cylinder, the free end of the water suction pipe is arranged on the bottom plate of the hollow cylinder, the suction nozzles are connected with the negative pressure machine through a water drainage pipe, and redundant water. The suction nozzle is pulled to drive the hollow inner lining plate to move left and right, so that the hollow inner lining plate and the concrete surface form relative friction motion, the plastering and smoothing effect is good, capillary channels on the concrete surface are sealed, the anti-freezing effect is improved, the surface compactness is good, and the strength is high.
Description
Technical Field
The invention belongs to the technical field of templates for building construction, and particularly relates to a special template for a concrete column in a tidal range.
Background
The bridge built on seawater or river water needs to be supported by a concrete column placed in the water, and the concrete column is easy to damage due to corrosion and freeze-thaw cycles in a seawater or river water fluctuation area. The concrete column cast by using the existing traditional concrete column template has the defects of large surface cement-water ratio, poor surface compactness, low strength and poor freezing resistance; the concrete in the template can not be manually or mechanically pressed, and the frost resistance is further reduced.
Disclosure of Invention
Aiming at the technical problems, the special template for the concrete column in the tidal range area is provided and is used for the tidal range area section of the concrete column, so that the water-cement ratio of the poured concrete is reduced, and the formed concrete column has high surface strength, compact surface and good durability.
The purpose of the invention is realized by the following technical scheme:
the invention relates to a special template for a concrete column in a tidal range area, which comprises an outer shell plate, a hollow inner lining plate, suction nozzles and a negative pressure machine, wherein the outer shell plate is formed by two symmetrical split structures and is connected into a whole to form a structure with connecting flanges at two ends of a cylinder, the hollow inner lining plate is arranged in the outer shell plate and is also formed by two symmetrical split structures and is connected into a hollow cylinder, a plurality of water suction holes are uniformly formed in the inner side wall of the hollow cylinder, a plurality of suction nozzles communicated with the hollow cylinder are connected to the outer side wall of the hollow cylinder, the suction pipes connected with the suction nozzles are arranged in the hollow cylinder, the free ends of the suction pipes are arranged on the bottom plate of the hollow cylinder, the suction nozzles are connected with the negative pressure machine through drain pipes, and redundant water.
Preferably, the suction nozzle is arranged at one end of the hollow cylinder and provided with a filter screen.
Preferably, the outer shell plate is uniformly provided with a plurality of openings along the circumference, the suction nozzle extends out of the openings of the outer shell plate, and the suction nozzle is pulled to drive the hollow lining plate to move left and right in the openings.
Preferably, the distance W between the opening on the outer shell plate and the two ends of the suction nozzle on the hollow lining plate is 5-10 mm.
Preferably, the diameter of the water suction hole formed on the cylindrical inner side wall of the hollow lining plate is 3-5 mm.
The invention has the beneficial effects that:
1. the special template for the concrete column in the tidal range area is characterized in that two ends of a shell plate with a connecting flange are connected with other templates, a hollow lining plate is arranged in the shell plate, a plurality of water suction holes are uniformly formed in the inner side wall of a hollow cylinder, a plurality of suction nozzles communicated with the hollow cylinder are connected to the outer side wall of the hollow cylinder, a water suction pipe connected with the suction nozzles is arranged in the hollow cylinder, the free end of the water suction pipe is arranged on the bottom plate of the hollow cylinder, a negative pressure machine is connected to the suction nozzles through a water drainage pipe, and redundant water on the surface is discharged through the negative pressure machine. The water-cement ratio of the poured concrete is reduced, and the formed concrete column has good surface compactness, high strength and good frost resistance.
2. According to the invention, the outer shell plate is uniformly provided with a plurality of openings along the circumference, the suction nozzles extend out of the openings of the outer shell plate, and the suction nozzles are pulled to drive the hollow inner lining plate to move left and right in the openings, so that the hollow inner lining plate and the concrete surface form relative friction motion to achieve a plastering and smoothing effect, thereby further sealing the capillary channels of the concrete surface, further improving the anti-freezing effect and realizing the plastering and compacting of the outer surface of the poured cement column.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
In the figure: 1. the water-absorbing device comprises an outer shell plate, 2 parts of a hollow inner lining plate, 3 parts of water absorbing holes, 4 parts of connecting flanges, 5 parts of suction nozzles, 6 parts of filter screens, 7 parts of water absorbing pipes and 8 parts of openings.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
Example 1: as shown in fig. 1, the special formwork for concrete columns in tidal range comprises an outer casing plate 1, a hollow inner lining plate 2, water suction nozzles 5 and a negative pressure machine, wherein the outer casing plate 1 is formed by two symmetrical split structures and is connected into a whole to form a structure with connecting flanges 4 at two ends of a cylinder, the hollow inner lining plate 2 is arranged in the outer casing plate 1, the hollow inner lining plate 2 is also formed by two symmetrical split structures and is connected into a hollow cylinder integrally, a plurality of water suction holes 3 are uniformly formed in the inner side wall of the hollow cylinder, a plurality of suction nozzles 5 communicated with the hollow cylinder are connected to the outer side wall of the hollow cylinder, a water suction pipe 7 (a hose is adopted in the example) connected with the suction nozzles 5 is arranged in the hollow cylinder, the free end of the water suction pipe 7 is arranged on the bottom plate of the hollow cylinder, and the suction nozzles 5 are connected with the negative.
The suction nozzle 5 is arranged at one end of the hollow cylinder and is provided with a filter screen 9 for filtering the sucked excessive sand and ash.
A plurality of openings 8 are evenly seted up along the circumference to shell plate 1, suction nozzle 5 passes through shell plate opening 8 stretches out, through artifical reciprocal pulling suction nozzle 5 about, can drive the interior welt 2 of cavity and remove along the circumference in opening 8, makes it and concrete surface form relative friction motion, realizes the effect that the cement column surface of pouring is screeded compactly to further seal concrete surface capillary channel, promote the freeze proof effect.
The distance W between the opening 8 on the outer shell plate 1 and the two ends of the suction nozzle 5 on the hollow lining plate 2 along the circumferential direction is 7 mm; the suction nozzle 5 is moved to drive the hollow lining plate 2 to move left and right in the opening 8. The diameter of the water suction holes formed in the inner side wall of the cylinder of the hollow lining plate 2 is 3mm, and the distance between every two adjacent water suction holes is 4mm, so that the concrete water seepage effect can be better.
When the concrete column casting machine works, the mould is connected to a tidal range area of a concrete column to be cast, two ends of the concrete column casting machine are respectively connected with the conventional common template through the connecting flanges 4, after the concrete column is cast, the suction nozzle 5 is connected with the water drainage pipe, the water drainage pipe is connected with the negative pressure machine, the negative pressure machine works, redundant water on the surface of the concrete column is sucked out to the hollow part through the water suction hole of the hollow lining plate 2, and the redundant water in the hollow lining plate 2 is sucked out through the suction nozzle 5, so that the water-cement ratio of the cast concrete is reduced. Meanwhile, after the initial setting and before the final setting of the concrete, the suction nozzle 5 can be pulled for a plurality of times, so that the hollow lining plate 2 moves left and right along the circumferential direction of the opening 8 of the outer shell plate 1, and the poured concrete column has the advantages of smooth and compact surface, high strength and good frost resistance.
The invention is not only suitable for the newly cast concrete column, but also suitable for the concrete column which needs to be repaired because the surface is damaged due to the washing of water, when the repair is needed, the template of the invention is arranged at the tidal range area of the concrete column, the concrete is cast outside the original concrete column, and the excessive water on the surface is discharged through the water suction hole of the hollow lining plate 2 by the suction of the negative pressure machine, so that the water cement ratio of the newly cast concrete is reduced, the strength is high, and the frost resistance is good.
Example 2: the difference between this example and example 1 is: in this example, the distance W between the opening 8 of the outer shell plate 1 and the two ends of the suction nozzle 5 of the hollow lining plate 2 is 10mm, and the suction nozzle 5 is moved to drive the hollow lining plate 2 to move left and right in the opening 8. The diameter of the water suction holes formed in the inner side wall of the cylinder of the hollow lining plate 2 is 5mm, and the distance between every two adjacent water suction holes is 5mm, so that the concrete water seepage effect can be better.
Example 3: the difference between this example and example 1 is: in this example, the distance W between the opening 8 of the outer shell plate 1 and the two ends of the suction nozzle 5 on the hollow lining plate 2 along the circumferential direction is 5mm, and the suction nozzle 5 is moved to drive the hollow lining plate 2 to move left and right in the opening 8. The diameter of the water suction holes formed in the inner side wall of the cylinder of the hollow lining plate 2 is 4mm, so that the water suction effect is guaranteed, cement mortar is reduced from flowing into the lining hollow template, the distance between every two adjacent water suction holes is 4.5mm, and the concrete is guaranteed to have a better water seepage effect.
In this embodiment, to facilitate the sliding of the hollow lining plate 2, the inner side of the bottom of the outer shell plate 1 is provided with a groove for accommodating the hollow lining plate 2, so that the hollow lining plate 2 slides along the groove of the outer shell plate 1.
The invention is not only suitable for the newly cast concrete column, but also suitable for the concrete column which needs to be repaired because of the surface damage caused by water scouring, when the repair is needed, the template of the invention is arranged at the tidal range part of the concrete column, the concrete is cast outside the original concrete column, and the suction of the concrete is carried out by a negative pressure machine, and the excess water is discharged through the water suction hole of the hollow lining plate 2, so that the water cement ratio of the newly cast concrete is reduced, the strength is high, and the frost resistance is good.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (5)
1. The special formwork for the concrete column in the tidal range area is characterized in that: the suction nozzle comprises an outer shell plate, a hollow inner lining plate, suction nozzles and a negative pressure machine, wherein the outer shell plate is composed of two symmetrical split structures and is connected into a whole to form a structure with connecting flanges at two ends of a cylinder, the hollow inner lining plate is arranged in the outer shell plate and is also composed of two symmetrical split structures and is connected into a whole to form a hollow cylinder, a plurality of water suction holes are uniformly formed in the inner side wall of the hollow cylinder, a plurality of suction nozzles communicated with the hollow cylinder are connected to the outer side wall of the hollow cylinder, a water suction pipe connected with the suction nozzles is arranged in the hollow cylinder, the free end of the water suction pipe is arranged on the bottom plate of the hollow cylinder, the suction nozzles are connected with the negative pressure machine through a water drainage.
2. The special formwork for concrete columns in tidal range areas according to claim 1, characterized in that: the suction nozzle is arranged at one end of the hollow cylinder and is provided with a filter screen.
3. The special formwork for concrete columns in tidal range areas according to claim 1, characterized in that: the outer shell plate is evenly provided with a plurality of openings along the circumference, the suction nozzle extends out of the openings of the outer shell plate, and the suction nozzle is pulled to drive the hollow inner lining plate to move left and right in the openings.
4. The special formwork for concrete columns in tidal range areas according to claim 3, characterized in that: the distance W between the opening on the outer shell plate and the two ends of the suction nozzle on the hollow lining plate is 5-10 mm.
5. The special formwork for concrete columns in tidal range areas according to claim 1, characterized in that: the diameter of the water suction hole formed in the cylindrical inner side wall of the hollow lining plate is 3-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011022337.4A CN112227209A (en) | 2020-09-25 | 2020-09-25 | Special formwork for concrete column in tidal range area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011022337.4A CN112227209A (en) | 2020-09-25 | 2020-09-25 | Special formwork for concrete column in tidal range area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112227209A true CN112227209A (en) | 2021-01-15 |
Family
ID=74107664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011022337.4A Withdrawn CN112227209A (en) | 2020-09-25 | 2020-09-25 | Special formwork for concrete column in tidal range area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112227209A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106650A (en) * | 1985-10-17 | 1987-04-22 | 株式会社熊谷组 | Concrete form apparatus |
| CN2605346Y (en) * | 2003-01-22 | 2004-03-03 | 陕西金兰高科有限责任公司 | Concrete general and vacuum two-purpose form |
| CN101929243A (en) * | 2010-07-12 | 2010-12-29 | 杭州银博交通工程材料有限公司 | Building template provided with water permeable device |
| JP2018003355A (en) * | 2016-06-29 | 2018-01-11 | 鹿島建設株式会社 | Concrete casting formwork and concrete casting method |
-
2020
- 2020-09-25 CN CN202011022337.4A patent/CN112227209A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106650A (en) * | 1985-10-17 | 1987-04-22 | 株式会社熊谷组 | Concrete form apparatus |
| CN2605346Y (en) * | 2003-01-22 | 2004-03-03 | 陕西金兰高科有限责任公司 | Concrete general and vacuum two-purpose form |
| CN101929243A (en) * | 2010-07-12 | 2010-12-29 | 杭州银博交通工程材料有限公司 | Building template provided with water permeable device |
| JP2018003355A (en) * | 2016-06-29 | 2018-01-11 | 鹿島建設株式会社 | Concrete casting formwork and concrete casting method |
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| PB01 | Publication | ||
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Application publication date: 20210115 |